KR940021995A

KR940021995A - Combustion device

Info

Publication number: KR940021995A
Application number: KR1019940004252A
Authority: KR
Inventors: 고오이찌 이토오
Original assignee: 최창선; 린나이코리아 주식회사; 나이또 스스무; 린나이 가부시기가이샤
Priority date: 1993-03-05
Filing date: 1994-03-04
Publication date: 1994-10-19
Also published as: JP2695592B2; KR970003161B1; JPH06257746A

Abstract

본 발명은, 마이크로컴퓨터가 고장나더라도 확실하게 연료를 차단할 수 있도록 하기 위한 전자밸브의 개폐밸브를 마이크로컴퓨터가 제어하여 실황상태에 빠진 연소기로의 연료공급을 차단하는 복수의 연소기를 갖는 연소장치에 있어서, 안전회로(4)는 실화를 검지한 버너에 대응하는 안전밸브(110,120,130)를 구동하는 트랜지스터(52,53,54)의 컬렉터전위가 실화검지로부터 제2 설정시간이 경과하였을 때(60초) 하이레벨로 되어 있으면, NAND회로(58)로 로우레벨출력을 송출하고 출력단을 하이레벨로 함으로써, 트랜지스터(51)를 부도통상태로 하여 안전밸브(110,120,130)를 닫힘상태로 하는 것이다.The present invention is directed to a combustion apparatus having a plurality of combustors for interrupting fuel supply to a combustor in a running state by controlling the on / off valve of the solenoid valve so as to reliably shut off fuel even if the microcomputer fails. In the safety circuit 4, when the collector potential of the transistors 52, 53, and 54 driving the safety valves 110, 120, and 130 corresponding to the burner that detected misfire has passed from the misfire detection, the second set time has elapsed (60 seconds). In the high level, the low level output is sent to the NAND circuit 58, and the output stage is set to the high level, so that the safety valves 110, 120, and 130 are closed with the transistor 51 in a non-conductive state.

Description

Combustion device

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.

제1도는 본 발명의 일실시예에 관한 가스테이블의 개략전기 회로도,1 is a schematic electrical circuit diagram of a gas table according to an embodiment of the present invention;

제2도는 그 가스테이블의 구조설명도,2 is a structural explanatory diagram of the gas table,

제3도는 그 가스테이블의 마이크로컴퓨터의 작동을 설명하는 플로차트,3 is a flowchart illustrating the operation of the microcomputer of the gas table,

제4도는 그 가스테이블의 안전회로의 작동을 설명하는 플로차트,4 is a flowchart illustrating the operation of the safety circuit of the gas table,

제5도는 그 가스테이블의 안전회로의 전기회로도.5 is an electrical circuit diagram of a safety circuit of the gas table.

Claims

A plurality of combustors for supplying and combusting fuel from a fuel supply pipe having a solenoid valve disposed therein; A plurality of combustion detection circuits arranged in close proximity to the combustion section of each combustor, respectively, for transmitting an electrical signal of a level corresponding to the combustion state of each combustor; The combustion state of each combustor is monitored on the basis of the electric signal, and when a misfire is detected, a valve closing signal instructing to close the solenoid valve corresponding to the combustor which detected misfire after the first predetermined period has passed from the detection is detected. A microcomputer; The solenoid valve corresponding to the combustor which detected the misfire by providing the valve closing detection means which detects the closed state of each said solenoid valve, and monitors the combustion state of each combustor based on the said electric signal, and detects misfire. When the first predetermined time has elapsed and remains in the open state, a safety circuit for discharging the valve closing signal instructing to close all the solenoid valves after the second predetermined time set longer than the first predetermined time has elapsed is provided. Combustion device.

※ Note: The disclosure is based on the initial application.